Use of a variable valve actuation system to control the...

Details Use of a variable valve actuation system to control the... Use of a variable valve actuation system to control the...

2005-09-27

2005-09-27

Denion, Thomas (Department: 3748)

Power plants

Internal combustion engine with treatment or handling of...

By means producing a chemical reaction of a component of the...

C060S274000, C060S300000

Reexamination Certificate

active

06948310

ABSTRACT:
A method for controlling the temperature and/or space velocity of exhaust gas passing through an aftertreatment device disposed in the exhaust system of a diesel engine provides an optimal environment for efficient conversion of NOx and undesirable emissions during transient and steady state engine operation. The method includes controlling intake and/or exhaust valve timing, either singly or in combination with fuel injection timing and selective individual cylinder cutout, in response to sensed engine operating parameters.

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patent: 2002-242711 (2002-08-01), None

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